Switch for cable-carrying drums



June "17, 1930. CQHEN v SWITCH FOR CABLE CARRYING DRUMS Filed April 51.928

N to 3 m 2 N INVENTOR.

Patented June 17, 1930 we W n an new um -r Mm a yam v UNITED STATESPATENT OFFICE J'OSECB'H. H. COHEN, OE BBIDGEZEORT, CONNECTICUT SWITCHFOR CABLE-CARRYING DRUMS Application filed April 3,

This invention relates to take-up devices for cable-carrying drums, andmore particularly to certain improvements thereon enblin r a laxeruantity of. cable to be cars x ie. hy the? ati lm without materiallyincreasing the size oi the device, providing a more positive automaticswitch mechanism and simplifying the construction. j I

In the accompanying; drawings which show one embodiment of thisinvention 1 Figure 1 is. a, side view of the device partly iiiilsection,the coverflplatebeing removed. to show iinderlying parts. i I g 2:is atransverse sectional view taken on the"1ine 2'2 Fig. l.

a Fig. 3 is a similar view of a portion of the device'showing thepositions ofparts of the automatic switch'mechanism after the, drum hasbeen rotated to. unwind a] portion ofthe cable therefrom. i v I As shownin the accompanying drawings, the device of vthe fpresent inventioncomprises a casing 10 for a drum 11 on which is casing through a sleeve13 secured in the wound a cable 12 which passes'out ofthe 1928. SerialNo. 267,115.

In order to permit adjustment of the tension of the rewlndlng spring 25Without a1- tering the position of the shaft 22 and from the exterior ofthe casing, the shafts 22 and 28 are structurally separate, althoughthey are axially aligned, and are held in such alignment by a pin 29 onthe shaft 28 entering a hole in the shaft 22. The shaft 28 has ashoulder adapted to'firmly' draw against the inside surface of thecasing 10 by a nut 30 engaging the thre'adedend of the shaft, a frictionWasher 31 being interposed between the nut 30 andtheoutside surface ofthe casing, a j 1 When it is desired to adjust the tension of a spring25, the nut 80 is backed off the threaded end of the shaft and then theshaft is turned in the desired direction by a screw-driver, or othertool, beinginserted in a kerf 32 provided in the endof the shaft 28.After the shaft is properly adjusted, the nut 30 is again-tightened tolook the shaft against all movement.

In order that as much as possible of the interior of the casing may beoccupied by the drum so that a cable of greatest possible Oct. 21, 1930.c, JAMES 1,778,857

RIEMOTE CONTROLLED DRAWER Filed Oct. 1, 1929 2 Sheets-Sheet 1 Fzlqlj z sA TTORNEYS

